ph14 wrote: brickman wrote:
PinkCow wrote:Add me to the magic hypo list?
Also, OP your prof does sound a little...tense...Is he a jerk in class?
haha, no he is an excellent professor, brilliant guy. but he is certainly enthusiastic.
he uses this: http://en.wikipedia.org/wiki/Point-bise ... oefficient
to determine when to drop out a multiple choice question. Yaleies...go figure.
Can we get the lay person's explanation? that was too complicated for me lol.
Less technical explanation:http://www.apexdissertations.com/articl ... ation.html
Basic idea: The professor can't determine how well the multiple choice question is measuring understanding of the topic with "standard" statistical measures, so he's using something specifically tailored to categorical variables.
It's a measure of "fit" like r, or r-squared.
Why this is relevant to whether he's a good professor or not is completely unclear to me.